#10348E#10348E

#10348E is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.5% C 0.155 H 263.7°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#10348E
RGB	rgb(16, 52, 142)
HSL	hsl(223, 80%, 31%)
HSV	hsv(223, 89%, 56%)
CMYK	cmyk(88.7%, 63.4%, 0%, 44.3%)
CIE-LAB	lab(25.32, 24.50, -53.04)
CIE-LCH	lch(25.32, 58.43, 294.80°)
OKLab	oklab(36.53% -0.0168 -0.1536)
OKLCH	oklch(36.53% 0.155 263.7)
XYZ	xyz(6.3224, 4.5183, 26.1248)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10348E #8E6A10

analogous

#10738E #10348E #2B108E

triadic

#10348E #8E1034 #348E10

tetradic

#10348E #8E1073 #8E6A10 #108E2B

square

#10348E #8E1073 #8E6A10 #108E2B

split-complementary

#10348E #8E2B10 #738E10

monochromatic

#040C20 #0A2057 #10348E #1648C5 #3165E8

Accessibility & contrast

On white

11.03

#10348E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#10348E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10348E

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10348E	#FFFFFF	#000000	##FFFFFF
##10348E	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004291

Deuteranopia (green-blind)

#00368C

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #10348e;
/* rgb */ color: rgb(16, 52, 142);
/* oklch */ color: oklch(36.5% 0.155 263.7);

Tailwind

colors: {
  custom: {
    50: '#696bb0',
    500: '#10348e',
    950: '#000000',
  },
}

SCSS

$custom: #10348e;
$custom-light: #696bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#10348e",
  "rgb": {
    "r": 16,
    "g": 52,
    "b": 142
  },
  "hsl": {
    "h": 222.857,
    "s": 79.747,
    "l": 30.98
  },
  "oklch": {
    "l": 0.36527,
    "c": 0.15454,
    "h": 263.7
  },
  "luminance": 0.04519
}

Semantic roles & 50–950 ramp

primary

#10348E

secondary

#C39B37

accent

#BE32F6

background

#F6F6FA

surface

#ECEBF5

border

#C7C6CF

text

#080611

muted

#7A7A80

Preview Lab

Preview with #10348E

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →